Oil stove or lamp



(No Model.)

W. H. WILDER. OIL STOVE 0R LAMP.

No. 450,547. Patented Apr. 14,1891;

UNITED STATES PATENT OFFICE.

\VILLIAM H. WVILDER, QF BOSTON, MASSACHUSETTS.

OIL STOVE OR LAMP.

SPECIFICATION forming part of Letters Patent No. 450,547, dated April 14, 1891.

' Application filed August 29, 1890. Serial No. 363,413. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM H. WILDER, a citizen of the United States of America, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Oil Stoves or Lamps, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention is an improvement upon oil or like stoves in which a zigzag flame is used for instance, that shown in Letters Patent No. 420,221, granted to W. W. Batchelder, dated January28,1890. Insaidpatentazigzagflamepassage is employed in combination with a straight wick for the purpose of providing the largest possible surface of flame and obtaining a maximum amount of light and heat from a minimum consumption of oil and without increasing the burning area of the wick.

It is the object of my invention to render the zigzag flame steady, to make it maintain its position and contour, and at the same time to prevent smoking and unevenness in the height of the flame.

In the accompanying drawings, Figure 1 is a perspective view of the cone-plate and chimney, the cone and flame being shown in dotted lines. Fig. 2 is a transverse vertical section through the stove, and Fig. 3 represents a chimn ey constructed to accomplish the objects of this invention.

In the use of the zigzag flame with the ordinary chimney it has been found that the contour andposition thereof are easily aifected by air-currents, which cause the flame to flit sidewise and assume an indefinite and uncerof the flame from streaming up, and thus smoking. The flame-passage is slightly widened in its diagonal portions from its center to the ends to preserve the flame at a uniform height. Under absolutely perfect conditions the flame-passage, as above described, will perform all the functions mentioned and good results will be obtained; but variations in the air-currents of the stove caused by outside influences or movements will destroy the perfect action of the flame, and to obviate this and render the stove insensible to the disturbing influences I provide a chimney opening or throat above the zigzag flame corresponding in shape and extent thereto. In Fig. 1 this throatopening is shown at B, as formed in the lower plate 9 of the top grate, and not only does it conform to the general contour of the flame, but it has the same features as the flame-opening in the capthat is, the lips, the projections, and the increased width of the diagonal portions of the opening toward the ends. The flame spreads upwardly, and therefore the chimney-throat opening is made of greater ex tent laterally to accommodate this increased area. The chimney is made flaring upwardly also to accommodate the spreading of the v ing, how it is formed, or how the irregular shape of the flame is made. It is essential also that the chimney used in connection with the zigzag flaring flame be flared upwardly and outwardly, as above mentioned. The

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chimney-opening may be formed by fluting or corrugating the chimney vertically, as in Fig. 3.

A heating-jacket may be used outside the chimney, if desired.

I claim as my invention 1. I11 combination with a burner having a cone-plate with a zigzag flame-opening formed therein, a chimney extending upwardly from said cone-plate and having a throatopening above the cone corresponding in contour to the flame, a chimney having its Walls flared upflame-opening, substantially as described.

2. In combination With a burner constructed to produce a zigzag flame, a chimney extending upwardly therefrom and having at a point above the burner a throat-openin g oorresponding to the shape of the flame, substantially as described.

alternating in position and the chimney having a threat opening with corresponding points, substantially as described.

4. In combination with a burner constructed to produce a zigzag flame, a chimney having a zigzag out1et,the diagonal portions of which are widened toward the ends of the burner, substantially as described.

5. In combination with a burner constructed 1 to produce a zigzag flame, a fluted chimney extending upwardly therefrom and fluted above the burner to correspond to the shape of the flame.

B. In combination with the burner constructed to produce an upward spreading Wardly and outwardly, substantially as described.

7. In combination with the burner constructed to produce .a zigzag upwardly-flaring flame, a flaring chimney having a zigzag 3 opening above the flame, substantially as de- 3. In combination with a burner-cap hav- 1 ing its flame-opening provided on its longi- 1 tudinal Walls with deflecting points or tongues 1 scribed.

In testimony whereofI affix my signature in presence of two witnesses.

WILLIAM H. WILDER. Witnesses:

WALTER P. KEENE, HERBERT D. BURNHAM. 

